Return correct exit code on failure (AST-57074)

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Description

This change has been to ensure that users receive accurate exit codes, the CLI will now display any errors that occur and exit with the appropriate exit code (e.g., 1 for errors, 0 for success). This allows users to effectively handle error conditions and automate tasks based on the CLI's exit status.

References

https://checkmarx.atlassian.net/browse/AST-57074

Testing

Verified that tasks now correctly return an exit code of "1" on error and "0" on success.

Checklist

[ ] I have added documentation for new/changed functionality in this PR (if applicable).
[ ] I have updated the CLI help for new/changed functionality in this PR (if applicable).
[ ] All active GitHub checks for tests, formatting, and security are passing
[ ] The correct base branch is being used

Checkmarx / ast-cli